26488240 has 40 divisors (see below), whose sum is σ = 61804080. Its totient is φ = 10557696.

The previous prime is 26488211. The next prime is 26488243. The reversal of 26488240 is 4288462.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 26488196 and 26488205.

It is not an unprimeable number, because it can be changed into a prime (26488243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37006 + ... + 37714.

It is an arithmetic number, because the mean of its divisors is an integer number (1545102).

Almost surely, 2^26488240 is an apocalyptic number.

26488240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26488240 is an abundant number, since it is smaller than the sum of its proper divisors (35315840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26488240 is a wasteful number, since it uses less digits than its factorization.

26488240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 26488240 is about 5146.6727115681. The cubic root of 26488240 is about 298.0924896462.

The spelling of 26488240 in words is "twenty-six million, four hundred eighty-eight thousand, two hundred forty".